Table 9. Receiver Performance Checks - Motorola ASTRO XTS 5000 I Basic Service Manual

Test Name System Analyzer
Reference RF Control: Monitor
Frequency
Meter: RF Display
Display: Bar Graphs
Freq: Selected radio TX freq.
Rated Audio RF Control: Gen
Output Level: -47 dBm
Freq: Selected radio RX freq.
Mod: 1kHz tone @ 3kHz dev.
Meter: AC Volts
Distortion As above, except
Meter: Ext Dist.
Sensitivity As above, except
(SINAD)
Meter: SINAD
Noise Squelch Set as for rated audio check
Threshold (only
radios with
conventional
system need to
be tested)
*
See Table 8 on page 16.

Table 9. Receiver Performance Checks

Radio
TEST MODE
CSQ channel*
or
programmed
conventional
channel
As above
As above
As above
Out of TEST
MODE; select a
conventional
system
Performance Checks
Test Set
PTT to continuous Frequency error to
be ≤ ±1.2kHz
(during the
performance check)
PTT to OFF (center) Set volume
control to
3.74Vrms
As above Distortion < 3.0%
As above RF input to be <
0.35µV
As above Set volume
control to
3.74Vrms.
Set RF level to -
130 dBm and raise
until radio
unsquelches.
Unsquelch to
occur at < 0.25µV.
Preferred SINAD =
6-8dB
Comments
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